package com.gupao.p7store.common.utils;

import com.gupao.p7store.common.exception.ServiceException;
import org.apache.commons.lang3.time.DateFormatUtils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.stream.Stream;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {

    public static final String YYYY = "yyyy";

    public static final String YYYY_MM = "yyyy-MM";

    public static final String YYYY_MM_DD = "yyyy-MM-dd";

    public static final String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static final String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    public static final String YYYYMMDDHHMMSSSS = "yyyyMMddHHmmssSSS";


    public static final String YYYY_MM_DD_T_HH_MM_SS_SSS = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};


    public final static String YMD_START = "yyyy-MM-dd 00:00:00";
    public final static String YMD_END = "yyyy-MM-dd 23:59:59";
    /**
     * 6天
     */
    public static final int NEARBY_6 = 6;

    /**
     * 0天
     */
    public static final int NEARBY_0 = 0;
    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNowForMiller() {
        return dateTimeNow(YYYYMMDDHHMMSSSS);
    }

    public static final String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date) {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate() {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 获取指定时间
     * @param timeFormat 时间格式
     * @param daysToSubtract 时间差
     * @return
     */
    public static String getSpecificDay(String timeFormat, long daysToSubtract) {
        return LocalDateTime.now().minusDays(daysToSubtract).format(DateTimeFormatter.ofPattern(timeFormat));
    }

    /**
     * 计算两个时间差,天数
     * @param startDate 开始时间
     * @param endDate 结束时间
     * @return
     */
    public static long getDatePoorByDay(Date startDate, Date endDate){
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        return day;
    }

    public static List<Object> getDateBetween(String start, String end){
        List<Object> list = new ArrayList<>();
        LocalDate startDate = null;
        LocalDate endDate = null;
        try {
            startDate = LocalDate.parse(start);
            endDate = LocalDate.parse(end);
        } catch (Exception e) {
            throw new ServiceException("日期格式不正确");
        }

        if (StringUtils.equals(start, end)) {
            list.add(start);
            return list;
        }

        long distance = ChronoUnit.DAYS.between(startDate, endDate);
        if (distance < 1) {
            return list;
        }
        Stream.iterate(startDate, d -> {
            return d.plusDays(1);
        }).limit(distance + 1).forEach(f -> {
            list.add(f.toString());
        });
        return list;
    }


    public static String utcToLocal(String utcTime){
        ZonedDateTime parse = ZonedDateTime.parse(utcTime);
        ZonedDateTime zonedDateTime = parse.withZoneSameInstant(ZoneId.of("Asia/Shanghai"));
        String dateTimeStr = zonedDateTime.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
        return dateTimeStr;
    }

    /**
     * desc: 相差分钟
     *
     * @param startDate 开始日期
     * @param endDate   结束日期
     * @CreateTime: 2022/05/24
     * @return:
     * @throws:
     */
    public static long getDatePoorByMin(Date startDate, Date endDate){
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startDate.getTime();
        // 计算差多少秒
        long min = diff / ns;
        return min;
    }
}
